fun tunnel 

vaginal orafice

Gee, I'd sure like to take a ride in that fun tunnel!

fun tunnel by hapenis September 21, 2003

Winston Fun Tunnel

The sexual act of a female sitting and or squatting in a form of liquid, with her vagina resting in said liquid. An air propulsion device, such as a straw and or snorkel, is then introduced to the liquid just below the vagina. Air is then introduced, preferably at a gentle volume, by the females gentleman caller and or lover, directly under the exposed vagina, thus stimulating said females genitalia and encouraging sexual arousal.

Jim: "Bruh, Becky's birthday is coming up and I have no idea what to get her..."

My cousin, Throckmorton: "My guy, don't even trip, give that classy gal a Winston Fun Tunnel! Sit her down in a shallow tub, grab up ye 'ol snorkel and introduce a steady burst of air from your lungs up underneath her Arby's #7! Happy Birthday!"

Winston Fun Tunnel by Blindsyde69 August 30, 2021

Funfunnel 

A word describing the female sex organ. It can be used to describe a female sex organ that is overused.

"Did you hear that Neil put it in her funfunnel"

Funfunnel by Scousers01 December 16, 2017